Isi yose - PVA ya mbere: Polymer y'uburyo bwo hejuru ku bikorwa bitandukanye
Ibisabwa bikomeye
PVA ikoreshwa cane mu bikorwa vy’impuzu. Ikora nk’igikoresho co gupima ubunini bw’indodo, igatuma zikomera kandi zikaba ziryoshe mu gihe co kuboha. Ivyo bifasha kugabanya ukumenagura no kwongereza uburyo bwose bw’igitambaro. Inyuma y’uguboha, PVA irashobora gukurwamwo bitagoranye mu kuyimesa, igasiga igitambaro gifise kamere zaco z’intango. Ikindi, PVA ikoreshwa mu guhingura ivyuma vyo gupfuka imyambaro n’ivyo kwifatanya, bikaba bituma zifatanya neza kandi zigakomera.
Mu bijanye n’impapuro, PVA ikoreshwa nk’ikintu co gupima ubunini bw’impapuro be n’ikintu gifatanya ibintu. Kubera ko ari ikintu gipima ubunini bw’impapuro, kiratuma urupapuro rudashobora guterwa n’amazi, rukomera kandi rukacapwa. Igira igipande gitoya kandi gica ibibatsi ku mpapuro, kikabuza wino gukwiragira kandi kigatuma amashusho acapwe asobanutse neza. Nk’ikintu gifatanya ibintu, PVA ikoreshwa mu guhingura impapuro zipfutse n’impapuro z’impapuro, igatuma habaho ugufatanya hagati y’impapuro zipfutse n’ivyo ipfutse, kandi igatuma ibintu vy’impapuro bikomera muri rusangi kandi bikagumaho.
PVA na yo nyene ni ikintu gihambaye mu bijanye n’ugukora ivyuma bifatanya. Irafise ubushobozi bwiza cane bwo kwifatanya, cane cane ku bikoresho bifise utunogo nk’ibiti, impapuro n’impuzu. Ivyuma bifatanya bishingiye kuri PVA biranywanywa n’amazi, biroroshe gukoresha, kandi birafise inkomezi nziza zo gufatanya. Bikoreshwa cane mu vy’ubwubatsi, mu vy’ibikoresho vyo mu nzu no mu gupfunyika ibintu kugira ngo bifatanye ibikoresho bitandukanye. Ikindi, ivyuma bifatanya PVA birashobora guhindurwa n’ibindi bintu vyongerwako kugira ngo bishobore guhangana n’ubushuhe, amazi n’ibindi kugira ngo bihure n’ibisabwa vyihariye vyo gukoresha.
Mu bijanye n’ugupfuka, PVA ikoreshwa nk’ikintu gihingura amasanamu. Ikora igipande gica ibibatsi, gishobora guhinduka, kandi kidashobora guterwa n’amazi ku ruhande rw’ikintu gipfutse, kigakingira ubukonje, imiti be n’imishwarara y’izuba (UV). PVA - based coatings zikoreshwa cane mu gukingira ibiti, ivyuma, n’ibintu vy’amapulasitike. Bishobora kandi gukoreshwa nk’igikoresho co gutangura canke co gupfuka hagati kugira ngo igipfukisho co hejuru gifate neza kandi gikore neza.
Ibisobanuro
| Izina ry'igicuruzwa | Inzoga ya polyvinyl | |||||||||
| Formule y'imiti | (C2H4O)n | |||||||||
| Uburemere bw'amamolekule | 30.000-150.000 g/mol | |||||||||
| Isura | Ifu yera canke utugingo ngengabuzima | |||||||||
| Ikibanza co gushongera | 230-240°C | |||||||||
| Ubunini | 1,26-1,31 g/cm3 | |||||||||
| CAS OYA | 9002-89-50. | |||||||||
| Kode ya HS | 39053000 | |||||||||
| EINECS OYA | 209-183-30. | |||||||||
| Gusaba | Ikoreshwa mu bifatanya, mu mpuzu, mu gupfuka impapuro no mu mafilime | |||||||||
Urupapuro rwo kugenzura uburyo
| Izina ry'igicuruzwa | Inzoga ya polyvinyl | ||||||
| UMUTWE | AGACIRO KAGEZWE (%) | AGACIRO K'IKIGERAGEZO (%) | |||||
| Ingero y'inzoga%(mol/mol) | 86,5-88,0 | 86 | |||||
| Uburemere mPa·s | 45,0-55,0 | 48 | |||||
| Ibirimwo bishobora guhinduka | ≤5 | 3 | |||||
| Ivu ibirimwo% | ≤0 | 0 | |||||
| Agaciro ka pH | 5.0 | 5.0 | |||||
| Ingano y'ibice nini kurusha 10mesh | - | 2 | |||||
| Ingano y'ibice bito kurusha 60mesh | - | 2 | |||||
Mu ncamake
Global - Premier PVA yacu iboneka mu mice itandukanye, harimwo amafu, amavuta, n’ibisubizo, kugira ngo ishobore gushitsa ivyo inganda zitandukanye zikeneye. Buri rwego rwa PVA rufise ibintu vyihariye nk’uburemere, urugero rw’uguhinduka kw’ibintu, n’urugero rw’uguhinduka kw’inzoga, bishobora guhindurwa bivanye n’ivyo umukiriya asaba. Ibintu vyacu vya PVA bipfunyikwa mu bipapuro bishobora gukingira ubukonje n’ikirere kugira ngo bibe vyiza kandi bibe vyiza mu gihe co kubika no gutwara. Waba uri umuhinguzi w’impuzu muri Aziya, umuhinguzi w’impapuro mu Buraya, umuhinguzi w’ibintu bifatanya muri Amerika y’Uburaruko, canke ishirahamwe ry’ugupfuka muri Amerika y’Epfo, Global - Premier PVA yacu ni polymere yizigirwa kandi y’agaciro kanini ishobora kugufasha gutuma ibintu vyawe bikora neza kandi bikaba vyiza.